A, zirconium dioxide structural ceramic advantages: 1, high density and strength greater than 900Mpa flexural strength, strength than Empress2 (cast porcelain crown) 1.5 times higher, unique resistance to rupture and rupture tough curing properties 2, because the structural ceramic base crown color is tooth white, so porcelain teeth set into the neck after a period of time will not become black and dark green, solve the metal porcelain crown The most difficult problem to solve 3, if the oral inlay dentures are metal porcelain crowns in the need for cranial x-ray, CT, MRI examination will be affected or even removed. Non-metallic Cercon (zirconium dioxide) on the x-ray but no blockage, as long as set into the zirconium dioxide porcelain teeth, later need cranial x-ray, C T, MRI examination do not need to remove the dentures, save a lot of trouble. 4.Hardness of zirconium dioxide After sintering, the hardness of zirconium dioxide is between 900Mpa-1200Mpa, the hardness of normal human teeth is 300Mpa-400Mpa, the hardness of zirconium dioxide is three to four times of normal human teeth, but its hardness is not always the same, it decreases by 5% every year until 15 years later, it is the same as the normal hardness of human teeth, and it will not decrease the hardness again. Zirconium dioxide is an inorganic non-metallic material that is resistant to high temperature, wear and corrosion: 1. Zirconium dioxide has a melting point of 2700 degrees Celsius and is one of the best materials in nature in terms of fire resistance. Its thermal conductivity is poor, but its electrical conductivity and corrosion resistance are very strong, even when heated to more than 1900 degrees Celsius, it does not interact with molten aluminum, iron, nickel, platinum and other metals, silicates and acidic slag. Therefore, it can be used to manufacture crucibles for melting precious metals, refractory tubes, heat-resistant glass and heat-resistant enamel. In addition to refractory materials and ceramic pigments, zirconium dioxide has become a major material for electronic ceramics, functional ceramics and artificial gemstones, and is being used in a wide range of high-tech applications. Zirconium dioxide has been successfully used as a heat shield in the space shuttle, as well as in brake discs and artificial transmission belts in Porsche cars. It is much stronger than other known non-metallic porcelain. Third, zirconium dioxide all-porcelain teeth computer-aided production, close and accurate, not only has the unique advantage of super toughness, but also has the all-porcelain system appearance of realistic color, strong and wear-resistant, biocompatible (does not stimulate oral tissues, completely avoid the ordinary porcelain may produce the edge of the teeth green, not close, gingival inflammation and allergy, etc.), easy to clean and other advantages. It is the best choice for doctors and beauty lovers.